https://github.com/jrosen081/mathparser

A Swift library to parse mathematical expressions into Decimal values
https://github.com/jrosen081/mathparser

mathematics parser swift

Last synced: 6 months ago
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A Swift library to parse mathematical expressions into Decimal values

• Host: GitHub
• URL: https://github.com/jrosen081/mathparser
• Owner: jrosen081
• License: mit
• Created: 2019-04-25T15:38:44.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2019-05-30T18:34:05.000Z (over 6 years ago)
• Last Synced: 2025-07-10T18:09:22.650Z (7 months ago)
• Topics: mathematics, parser, swift
• Language: Swift
• Size: 52.7 KB
• Stars: 4
• Watchers: 1
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# MathParser

[![CI Status](https://img.shields.io/travis/jrosen081/MathParser.svg?style=flat)](https://travis-ci.org/jrosen081/MathParser)

[![Version](https://img.shields.io/cocoapods/v/MathParser.svg?style=flat)](https://cocoapods.org/pods/MathParser)

[![License](https://img.shields.io/cocoapods/l/MathParser.svg?style=flat)](https://cocoapods.org/pods/MathParser)

[![Platform](https://img.shields.io/cocoapods/p/MathParser.svg?style=flat)](https://cocoapods.org/pods/MathParser)

## What it is:

MathParser is a library written in swift that will allow a user to parse a String.

## What you can do with it:

* Addition

* Subtraction

* Multiplication

* Division

* Exponents

* Overload the operators.

## How to use:

Here is an example of how to use the library.

``` swift

let expr = Parser.parse(string: "1 + 2") // Will return an expression that can be evaluated.

let exprValue = expr?.evaluate() // Evaluates the expression (will be 3 in this example)

```

To overload operators (this can be done if wanted):

```swift

Operators.addOp = ">"

let ans = Parser.parse(string: "1 > 2")?.evaluate() // This will evaluate to 3 with the new operator

```

## Public methods:

* Parser.parse

  * This returns an Optional Expression. This will return nil if the String is unparseable.

* Expression.evaluate

  * This returns an Optional Decimal. This will only return nil if there is a division by 0.

## Example

To run the example project, clone the repo, and run `pod install` from the Example directory first.

## Requirements

## Installation

MathParser is available through [CocoaPods](https://cocoapods.org). To install

it, simply add the following line to your Podfile:

```ruby

pod 'MathParser'

```

## Author

jrosen081, jrosen081@gmail.com

## License

MathParser is available under the MIT license. See the LICENSE file for more info.